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Second-order boundary corrections to the radial acoustic eigenvalues for a spherical cavity
Published
Author(s)
Keith A. Gillis
Abstract
We calculated the eigenvalues of the radially-symmetric acoustic modes of a gas-filled, spherical cavity to order (δT/a)2, where δT is the thickness of the thermal boundary layer and a is the radius of the cavity. Our results are consistent with high-precision acoustic measurements made to re-determine the Boltzmann constant.
Gillis, K.
(2012),
Second-order boundary corrections to the radial acoustic eigenvalues for a spherical cavity, Metrologia, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=911620
(Accessed October 7, 2025)